「Node.js」import 引入 JSON 文件的问题 - rollup && eslint

Feb 9, 2023#Node.js #JavaScript #rollup #eslint332

AI-generated summary

This article discusses the issue of importing JSON files in Node.js using rollup and eslint. The author encountered errors after upgrading to rollup version 3.15, which required an import assertion of type "json" for the package.json file. However, this caused eslint to report a parsing error. To resolve this, the author suggests installing eslint, @babel/core, @babel/eslint-parser, and @babel/plugin-syntax-import-assertions. The .eslintrc.js file should be updated to use the @babel/eslint-parser and include the necessary babel options. The article provides additional resources for further information on this topic.

rollup 2.x 版本是可以直接这么写的：

// rollup.config.js
import pkg from "./package.json";

升级 3.15 后报错；

[!] TypeError: Module "./package.json" needs an import assertion of type "json"

修改后 eslint 又会报错：

// rollup.config.js
import pkg from "./package.json" assert { type: "json" };
// Parsing error: Unexpected token assert ← eslint

进一步解决：

cnpm i -D eslint @babel/core @babel/eslint-parser @babel/plugin-syntax-import-assertions

// .eslintrc.js
"parser": "@babel/eslint-parser",
"parserOptions": {
    "requireConfigFile": false,
    "babelOptions": {
        "plugins": [
            '@babel/plugin-syntax-import-assertions'
        ],
    },
    "ecmaVersion": "latest",
    "sourceType": "module",
},

就挺麻烦的 - -

· · · · · ·

「折腾」ESLint 安装与使用_电脑网络_沉冰浮水：

https://www.wdssmq.com/post/20190917021.html

Support of assert {type: "json"} · Discussion #15305 · eslint/eslint：

https://github.com/eslint/eslint/discussions/15305#discussioncomment-2508948